Leopold sorensen



(No Model.)

C. F. L. SORBNSEN.

- LUBRIGATOB.. No. 406,675. Patented July 9, 1889.

L l I i-- Ilo UNITED STATES ATENT ENCE..l

CHARLES FREDERlK LEOPOLD SRENSEN, OF COPENIIAGEN, DENMARK.

LUBRICATOR.

SPECIFICATION forming pare of lLetters Patent 110.406,675, dated July 9,- 1889.

- Application tiled Mai-c1120, 1889. Serial No. 304,029. (No model.) Patented in rance raam 2o, lese, No. 183,841; in Belgium February 20, 1888, No. 80,710 in England PebruaryZO, 1888,'11'0. 2,523, and in Norway February 20,1888, 110.883.

To all whom it may concern:

Be itjknown that I, CHARLES FREDERIK' LEOPOLD SORENS'EN, of Copenhagen, Kingf `structed possess the great disadvantage .of rei quiring to be inspected at frequent intervals--` that is to say, at least once daily. 'When the piston, after having forced out all the lubricant contained in thecylinder, reaches the end of its stroke, it is necessary to raise it and to refill the cylinder, without which lubrication ceases. Y y p By this invention these defects are obviated, and in carrying out the invention a piston is provided passing through a stuting-4 box into a cylinder under pressure, so as 'to drive out the oil through a tube, whereby it is caused to enter the space subjected to steampressure. A discharge-valve prevents the oil from returning into the tube, andat the same time causes the cylinder onthe return-stroke of the piston to become refilled with oil from avessel also provided with a valve. The continuous movement of the piston is advantageously eieoted by means of the rotary movement of a cam, or by other suitable arrangement. A suitable cam arrangement comprises a disk the periphery of which is of a spiral form, the radii of the spiral increasing proportionately with the angle of rotation. Another suitable arrangement of 'cam com prises a helical surface ona vertical axis. The heix only extends once round the axis, and the 4pitch of the thread corresponds with the length of stroke of the piston. Itis, however, to be understood that I donot confine myself to these arrangements of cams, as they are j arbor c,

only given as examples, and can be replaced 5o revolution, when the spring will carry -ba'c l'r `r the pistonto its original position.

Figure 1 is a side view, partly in section, of the improved apparatus provided with a spiral cam, the section being taken on the line A B of Fig. 2. Fig. 2 is a front view` partly" in section, taken on the line C D E of Fig. 1. Fig. 3k is a plan, and Fig. 4 is a side view, showing the modified arrangement in which a'helical cam is employed. Similar letters of reference indicate corre- -sponding parts.

a. is the ratchet-wheel, which turns in the direction shown by the arrow in Fig. l, at the same time turning the spiral disk or the helix b, or their. equivalent, xed on the arbor c of the ratchet-wheel. .s

ld is the piston, which by means of the spring e is caused to follow or to bear Vagainst the peripheryv of the spiral, the thread of the helix, &c. It will thus be seen that when the piston has passed the terminating apoint of the spiral, or when the helix has mad'e a complete revol ntion, the spring e will immediately cause the piston to reascend and retake its normal position.

f -is the cylinder, into which the piston draws oil from the reservoir. g through the valve h. Under the pressure of thepiston the oil is 9o forced out of the cylinder f, through t-hevalve t', and thence into the pipe k, which-opensinto the place wheretlie oil'is to be used. The cylinder f, thel piston-guide Z, and its screw'o, which prevents-the piston from turning, as well as the bearings m, in which turns the are firmly connected to the frame h, which serves for fixing the entire apparatus on a machine or Wherever it maybe required for use.

Havin g th us described my invention, I elai m as new and desire to secure by Letters Patent- In a lubricator, the combination, with a casing, of a piston'working in the same, a spring pressing the piston upward, a @am which.

presses the piston downward gradually as said @am rotates, a ratchet-wheel on the shaft ofl the cam, and a pzlwi engaged with Said ratch- CHARLES FREDERIK LEOPOLD SRENSEN.

Ttnessesz CHRISTIAN C. SRENSEN,

ED. J. LARSEN. 

